Bag-machine.



NO MODEL.

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H. E. WESTERVELT & W. G. HOLMES.

APP

PATENTED MAY 10, 1904.

mz'nonms frans ce', Moro-mmc., wAsHwsmN, n. c.

No. 759,785. l PATENTBD MAY 10, 1904. H. E. WESTBRVELT & W. G. HOLMES.

` BAG MACHINE.

APPLIUATION FILED 00T.1s. 1901. No MODEL. a SHEETS-SHEET 2.

ogy. 8. M M ff?? I?? venan No. 759,785. y PATENTED MAY 10, 1904. H. E.WBS BLT & W. G. HOLME.

MACHINE.

APPLIOATION FILED 001116, 1901.

N0 MODEL. 8 S EEEEEEEEEEE 3.

No.'759,785. PATBNTED MAY l0, 1904. H. E. WESTERVBLT 6r, W. G. HOLMES.

BAG MACHINE.

APPLIOATION FILED 00T. 1a. 1901.

N0 MODEL.

.n m .M e) .l @v5 w vf@ o 11mm f5 W mw we ef Z fa PATENTED MAY l0, 1904.H. E. WESTERVELT & W. G. HOLMES.

BAG MACHINE.

APPLIOATION FILED 0012.13, 1001.

8 SHEETS-SHEET 5.

NO MODEL.

No. 759,785. PATENTED MAY 10, 1904. H. E. WESTERVELT & W. G. HOLMES.

BAG MACHINE.

P I0 0N FILED T. 18. 1901. N0 MODEL. AP L ATI 00 SBHEETS-SHEET 8.

j Il l) MKM @M y No. 759,785. PATENTED MAY l0, 1904. H. E. WBSTERVELTLW. G. HOLMES.

BAG MAOHINE.

APPLIGATION FILED 00T. 1a. 1901.

8 SHEETS-SHEET 7.

NO MODEL.

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H0. 759,785. PATHNTHD MAY 1o, 1904.

H. H. WHSTHHVHLT H W. G. HOLMES.

BAG MACHINE.

APPLICATION FILED OUT.18. 1901.

' N0 MODEL. 8 SHEETS-SHEET 8` my. e5.

I P .9,9 Q 95 9i Il IHVEHLHPE.: WWUHEEHE: HEVUHVKEWEEIEPVEI Q/ jqWallar{ll-mirm. IZ/@QW EH UNITED STATES j Patented May I, 1904.

PATENT OEEICE.

HERBERT E. WESTERVELT, OF 'SOUTH BEND, INDIANA, AND VVALTER Gr. HOLMES,OF BUOYRUS, OHIO; SAID HOLMES ASSIGNOR TO SAID VESTERVELT.

BAG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 759,785, dated May 10,1904. Application filed October 18, 1901. Serial No. 79,080. (No mbdel.)

To rif/ZZ whom 'it may concern,.-

` Beit known that we, H ERBEET E. VVESTER- vELT, residing at South Bend,m the county of l UnitedStates, have invented a certain new and AusefulImprovement 1n Bag-Mach1hes, (Oase No. 1,) of which the following is afull, clear,

concise, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification.

Our invention relates to machines for making Satchel-.bottom bags out oftucked tubing.

Prominent objects of the invention are to provide new and improvedmechanism for performing the various operations incident to theformation of the bag.

In the accompanyingdrawings, Figure 1 is a side elevation of a paper-bagmachine embodying our present invention. Fig. 2 is a side elevation of aportion of such machine. Fig. 3 is a vertical section taken on line 3 3in Fig. 4. Fig. t is an end view of the machine, certain parts beingbroken away for convenience of illustration. Figs. 5 and 6 arerespectively a side elevation and a top plan of certain other mechanismsforming part of the i machine. Fig. 7 is an end elevation of thc partsshown in Fig. 6, on an enlarged scale, l with the former shown m sectionon llnc 7 7 stages. Fig. 22 is a detail View of the edgei turner. Fig.23 is a View of the upper portion of the folding-bed and certaincoperating devices. Fig. 24 is a View of the foldingbed and co 5peratingcams.

Referring to Fig. 1, the machine shown for illustrating the invention isprovided with a bod y-frame A, which is conveniently constructed withhorizontal portions 1, 2, and 3 and vertical portions 4, 5, and 6, thelower Fig. 1() is across-secends of which latter portions form the legsof the machine.

The frame A, Fig. 1, is provided with a former B, which is arrangedhorizontally above thc upper horizontal piece l and has its rear endsecured to the top of the vertical portion 4. This former B can be ofthe ordinary construction. It is provided with a tongue O, Figs. 1, 5,6, and 7, consisting' of a liat metal strip conveniently formed of twoportions 9 and 10, secured together at 11. The portion 9 is providedwith a plurality oflongitudinal slots 12 12. The section 10`has itsforward end enlarged, as shown in Fig. 6, and

this enlargement has its end bifurcated. The tongue could of course bemade of a single strip; but the construction shown is preferable,because by it arrangement can readily be made for adjustment of thelength of the tongue. The tongue O can be secured to the end of theformer in any suitable or desired manner. The usual feed-rolls D D',driven in any usual manner, are also provided, being supported by theframe A. The roll l) is above the tongue Gand the roll D"bclow the same.

Cutting mechanism for cutting the tucked tube into proper lengthsforbag-blanks is arranged in front of the feed-rolls D and D'.

This cutting mechanism involves a roll E,

17 are geared together, so that the cuttingblade 15 and the blade Fapproach the tongue simultaneously, as indicated by,` dotted lines inFig. 1. The blades are so located that the cutting-blade 15 immediatelyprecedes the c`ooperating blade F. The cutting is performed by thisrotation of the two blades, the blade F striking the tongue C andforcing the tongue and the tube upon the same downwardly, so that thetube is cut by the teeth of the blade 15, it being understood, ofcourse, that the tongue C, being a thin metallic strip, is so pliable asto be bent downwardly by the blade F. The saw-teeth on the cutting-bladeat the sides of the tongue sever the tucked tube thoroughly, and thestraight teeth passing through the slots of the tongue shred or slit thetube. This shredded portion is readily broken or separated from theremainder of the tube when the blank is further pressed downward by theblade F.

The construction of the tongue C, especially so far as the slots 12 12are concerned, can be changed or modified without departing from myinvention.

A second setl of feed-rolls G G are arranged in front of the cuttingmechanism just described, the roll Gr being' above and the roll G beingbelow the tongue C. The roll E is on the main driving-shaft 14, whichlatter is suitably mounted in the frame A. The shaft 17, carrying therotary blade F, is geared to the roll E. lBy the arrangement thusdescribed the tucked tubing is fed continuously along the former B bythe feed-rolls D and s D'. It is also advanced by these rolls to thecutting mechanism, where the tubing is cut into bag-blanks by thecutting-blade 15 and the coperating blade F. These cutting devices areofsuch diameter, of course, as to permit an amount of tucked tubingsuficient for a bag-blank to proceed between each cutting operation. Thebag-blanks are fed forwardly one after another by the feed-rolls Gr G',it being seen that each blank is well into and firmly gripped by thesefeed-rolls before it is severed from the remaining portion of thetubing. The bag-blanks, properly cut, are thus delivered one afteranother from the end of the tongue C. It will be seenthat in this waythe lower ply of the bag-blank passes in below the tongue C and istherefore held down by such tongue.

The present machine is of that class or type of machines having a rotarycarrier or cylinder, which receives the bag-blanks after they areproperly cut and upon which these bagblanks are folded and pasted toform the Satchel-bottom. The remaining features of my present inventionrelate to improved mechanism for forming the diamond fold lwhile thebag-blanks are being carried upony the rotary carrier or cylinder'.

In Fig. 1 the rotary7 carrier or cylinder is represented at H and isshown mounted on a shaft 21, supported bythe frame A, so that the top ofits periphery comes immediately below the forked end of the tongue C.The particular construction and operation of this cylinder or carriercan be best understood by reference to Figs. 2, 3, and 4. It comprisesacylinder H, having a central web if and having its cylindrical surfaceof suitable width to provide a folding-bed for the folding of thebag-blanks. It is desirably made of such diameter that its periphery canaccommodate a plurality of bags. In the drawings it is shown arranged soas to receive land fold three bags during each revolution. The cylinderor carrier is therefore provided with three sets of mechanisms, each setof which is adapted to perform the operations necessary to fold a tuckedtube into a Satchel-bottom bag. As each set of mechanisms is alike, adescription of one set will suffice for all. Flach of these sets offolding mechanisms includes means for engaging the bag-blank as it isfed forwardly to the rotary folding-bed. The engaging device shownconsists of a front gripper J, which as a matter of specic improvementismade with rearwardly-diverging inclined or beveled side edges 22 22, asshown in Fig. 4. It is also constructed with an end portion 23. Thisforward gripper J is located midway between the sides of the cylinder Hand is extended lengthwise of the periphery thereof, as shown in Figs. 3and 4. It is arranged and mounted for a swinging movement about itsforward end toward and away from the folding-bed provided -by thecylinder, so as to grip and release the bagblank. The movement is suchas to separate the rear end of the gripper from the foldingbed providedby the cylinder when the gripper is in position at thetop of thecylinderto receive the front end of the bag-blank and to bring Y suchfront end downward against the foldingbed as the gripper recedes fromsuch receiving position. This allows the front end of the bag-blank topass between the folding-bed andthe gripper whenv it is fed to the bedand causes the gripper to grip or clamp such front end of the bagimmediately thereafter, and thereby compel the rotation of the blankwith the cylinder. In Figs. L1 and 11 the gripper is shown depressed, soas to engage or grip the front end of the bag-blank. In so doing thefront end of the gripper enters the recess or bifurcation at the forwardend of the tongue C. Thus the tongue C and front gripper J cooperatewith one another, the tongue serving to hold the forward end of thelower ply down upon the folding-bed, while the gripper approaches andgrips such front end. By providing the front end of the tongue C withthe indentation or recess above described (see Fig. 6) the gripperactually grips the end'of the blank while it is still held down by thetongue.

By making the front gripper J with forwardly-converging side edges theseedges act as defining edges to define the inclined forward edges orsides of the diamond fold. I/Vhen the upper ply is bent or foldedbackwardly, the part of the blank forming the top of the diamond foldcomes back over the front gripper, and the flaring sides thereof form orIOO IIO

ISO

,entire width of the blank.

i y n l define these creases, which become the 1nclined forward edges orsides of the diamond fold. By reason of these iiaring sides also thegripper covers the entire width of the front part of the lower ply uponwhich it rests, as a result of which the pulling' of the blankoccasionedby the bending or folding back of-the upper ply cannot tear the lowerply,`as would be the case if the edges of the front gripper werestraight and so presented a straight cutting or tearing edge. While anymechanism could be employed for thus operating the gripper, thearrangement we have shown herein constitutes a matter of further andspecific improvement. In this arrangement the gripper is secured, as byscrews 24 24, to the outer end of the rocker-arm 25, Fig. 3, mountedupon a shaft 26, supported by the cylinder H, Fig. 3, the latter beingprovided with recesses in its periphery, through which the outer portionof the arm 25 passes. The lower end of the rocker-arm is provided with aroller 27, mounted on the shaft 26. On opposite sides of the rockerarm25 are collars 23 23. ,The shaft 26 is also provided with an arm ly',and the end of this arm is connected to a spring j', whose other end isconnected to the hub of the cylinder. By this spring' the shaft 2G isheld in such position as te hold the gripper JV always against thefcildingbed, or, in other words, hold it closed.

A cam 29, having a raised portion 30, is arranged and mounted within thecylinder H so as to come opposite and afford a path for the roller 27 atthe inner end of the rockerarm 25. The raised portion 30 of this cam islocated so as to cause the rocker-arm 25 to swing the gripper JV upward,or, in other words, to open it when thc gripper is in position toreceive the bag-blank. Another cam, 3l, having a raised portion 32, isalso arranged within the cylinder H, so as to afford a path for theroller 27.` The raised portion 32 is so arranged as to open the gripperafter the diamond fold `of the bag has been coinpleted. l

For the purpose of forming the crease in the blank for the primary foldany mechanism could of course be used. As a matter of furtherimprovement, however, we employ a creasing-blade 37, which is arrangedfor rotation, as by mounting it upon a shaft 38, so as to swing down andhave its lower edge strike against and crease the blank after the properportion of the same has gone forward. rlhis blade defines the creasethroughout the To insure its proper action, the folding-bed at the pointwhere it acts is made yielding or elastic, as by forming recesses in thebed and inserting therein strips i, of rubber or like material. le orderto grip the blank lirml y to the folding-bed at this point, we employside grippers K K, which are arranged opposite one anof the bag-blank.

l hereinafter.

as the cylinder rotates.

other on the sides of the cylinder. These side grippers K K convenientlyconsist ofside portions and top portions 34, whereof the former liealongside the sides of the cylinder and the latter are arranged abovethe same. rlhe forward edges of these top portions 34E slant or inclinerearwardly, as well shown in Fig. 9, whereby they permit thecreasingblade 37 to reach and act upon the full width These sidegrippers K K are arranged and mounted in such a way as to have their topportions 34 34 separated from the folding-bed when the grippers are atthe receiving position of the cylinder and to have l these portionsclose down against the folding-` bed as the grippers recede from suchposition. The separation of the grippers from the folding-bed allows thebag-blank to pass in between them and the bed, and the subsequentclosing of the grippers causes them to. clamp it against the same. Thetop pair of grippers occupying the receiving position are shown in anopen condition in Fig. The other pairs in this ligure and also those inFig. l2 are shown in a closed condition, the folding-bed having advancedfrom itsreceiving position. As an arrangement for bring` ing about thismovement of the grippers they are mounted upon arms 35 35, which latterare pivotally connected with the web of the cylinder at 3G 36. l

Assuming the griiipers to approach the re-J ceiving position in anopencondition, their top portions 34- 34- are struck and presseddownwardly by a projection 37 on the rotary blade 37. The mechanism bywhich these side grippers K K are moved in and out relatively to thesides of the cylinder H and are held in an inward position will bedescribed When the grippers are freed. after being swung inwardlyagainst the cylinder and outwardly again by the mechanism to behereinafter described, they are swung upwardly by a spring 35", coiledabout the pivotal shaft of the spindle After the bag-blank has beengripped by the front gripper J and side grippers K K, as beforedescribed, the upper fold of the tucked tubing is engaged and swungbaclnvardly about the side grippers, while at the same time the lowerfold is also engaged. and held down at a point between the front andside grippers.

For this purpose we employ mechanism which constitutes a matter offurther improvement, although, of course, any other mechanism could beemployed. 1t comprises two pairs of upper tuck-turning devices and apair of lower tuck engaging or gripping devices, whereof one of thepairs of upper tuck-turning devices and one of the lower tuck-grippingdevices are arranged on each side of the cylinder opposite one another.it is understood, are advanced with the cylinder, so that they operateupon the bag-blank The devices shown IOO IIO

These devices,

for turning back the upper tuck comprise outside and insidepinching-fingers L and INI, respectively, whereof the finger L isarranged to pass outside of the upper tuck and the finger M inside ofthe same and the two together to grip or pinch this tuck between them.The lower tuck gripping or engaging devices shown consist in each caseof a gripper or finger N, which is adapted to enter between the upperand lower tucks and engage the lower onel and clamp the same against thefoldingbec.

The pinching-fingers L and M are understood to engage the upper tuck andswing the same about the crease-line formed by the creasing-blade 37 inan upwardly and then backwardly direction, so that the portion thereoflying in front of vthe crease-line comes into place above the portion ofthe blank immediately in the rear of that line. At the same time thelower tuck-grippers N N engage the lower tuck and hold the same fastupon the foldingbed. Vhile the pinching-fingers L and M could have anydesired form, they are preferably made of flat plates with pointed ends,as shown in Fig. 9. For securing this rotary movement of thepinching-fingers L and M they are mounted upon a rock-shaft 42, thefinger L being fast on the shaft and the finger M being loose thereon.The finger M is provided with a stud 43, which extends through thefinger L and which is surrounded by a coiled spring 44. rlhis springthus tends to force and hold the two fingers together at all timesduring their rotation on the shaft 42. Vhen the fingers approach thereceiving position of the folding-bed, the shaft 42 is in such positionthat the fingers are in advance of the shaft and substantially parallelwith the folding-bed, or, in other words, in their downward and forwardposition. At such time a projection 41 on the finger M will engage witha catch 40. As the parts move forward the shaft is rotated so as toswing the fingers L and M upwardly; but the loose finger M, be-

' ing held by the catch 40, is momentarily degrees from their initialposition.

tained, permitting the shaft to swing' the finger L up alone. Thiscauses a separation of the fingers, which permits the introduction ofthe up per tuck between them. The continued forward movement of thefolding-bed, however, results in the tripping of the catch 40, and theconsequent release of the finger' M, whereupon the latter springsupwardly and pinches the upper tuck between itself and the upper fingerL. The continued forward Inovement of the folding-bed results in thecontinued upward rotation or swing of the fingers holding the tuckbetween them, which rotation is continued until these fingers occupy aposition in the rear of the shaft 42 and close to the folding-bed, or,in other words, a position substantially one hundred and eighty de- Theupper tuck having' been engaged by them throughout this movement is ofcourse carried or swung completely back and is folded down about theprimary crease, so as to form the diamond fold. In order to release theupper tuck from these fingers, an abutment 45 is provided, located insuch position that the projection 41 on the finger M will strike againstthe abutment when the rearward swing of the fingers has beensubstantially completed. This of course stops the movement of the fingerM, while at the same time the finger L, fast on the shaft 42, continuesits swing momentarily. The result is a separation of the two fingers andthe consequent freeing of the upper tuck. The fingers L and M are, atthe beginning of the opening operation, shown in Fig. 13 and at the topof Fig. 2. In Fig. 14

`they are shown nearly open, and in Fig. 15

and the lower left-hand side of Fig. 2 they are shown completely open.In Fig. 16 the opening of the fingers to release the upper tuck isshown. At the lower right-hand side of Fig. 2 the fingers are showncompletely closed. The rotation of the shaft 42 for the purpose ofeffecting the swinging movement of the fingers is brought about bysuitable mechanism for that purpose'. While any such mechanism could beemployed, as a mattei' of further improvement we employ that hereinshown. In this mechanism there is provided a rock-shaft 46, carried bythe cylinder H and having a gear-wheel 47 gearing with a pinion 48 onthe shaft 42. The rock-shaft 46 is also provided with a rocker-arm 49,having its lower or inner end equipped with a roll 50. This roll 50 isadapted to travel upon a cam P, arranged outside ofI the cylinder H onshaft 21 and constructed with an outwardly-extending inclined surface 51and an enlarged pe riphery 52, the former of which serves to retard theroll 50, and thereby swing the rockerarm 49 upwardly and rearwardly toeffect the upward and backward swing of the fingers L and M, and thelatter of which serves to hold the roll 50 in such outward position, andthereby retain the fingers in their rear position. The cam P also has aninwardly-extending inclined surface 53, which permits the roll 5() tomove inwardly and the rocker-arm 49 to thereby move so as to swing thefingers L and M` back to their original position. To secure thisrestoration to original position, the shaft 42 is provided with a coiledspring 54, adapted to rotate the shaft 42 in a reverse direction. Thesupplemental swing of the rock-shaft 42 to move the finger L downwardlyand separate it from the loose finger M while the latter is held by thestop 45 is secured by a projection or ridge 55, extending out from thesurface 52. The catch 40 is pivoted at 56 and is tripped by astationarily-mounted roll 57, located so as to engage the lower end ofthe catch. The catch 4() is held normally in position to engage thefinger M by a spring 58 acting upon the lower end of the catch. rlhe IOO. tuck between it and the bed.

lower tuck-gripper N is elevated slightly above the folding-bed as thelatter approaches the receiving position, so as to permit the lower tuckto pass between it and the bed. As the bed reeedes from the receivingposition, however, this gripper descends and grips the lower l/Vearrange for this operation by securing the gripper to a rocking block59, Figs. 2, 4, and 10, which is arranged to tilt or swing about itsouter end, so as to lift or depress the gripper. The tilting movement ofthis rocking block 59 is secured by providing its inner end with a roll60 and arranging a cam Q, Fig. 8, upon the frame of the machine, so thatthe roll 60 can travel upon it. This cam Q has an enlarged portion 61,which tilts the block 59 upwardly as it approaches the receivingposition of the folding-bed, and also has a depressed portion 62, whichallows the block to descend immediately after that position is passed.This cam Q has also a second elevated portion 63, which lifts therockingblock after the diamond fold has been formed, and thereby permits theextraction of the gripper from the bag-blank. The rocking block 59 issubject to a spring68, tending' to hold the 'block inan inward position.As a convenient arrangement the shaft 42, carrying the iingers L and M,and the rockshaft 46 are mounted in this rocking block 59.

In order to permit the proper action of the lingers L, M, and N, theyare moved in and out toward and away from the folding-bed, so as toenter and withdraw from the tucks of the bag-blank at the proper times.Their approach toward the folding-bed begins as the latter approachesthe receiving position, and at this position they are at their inmostlocation. They continue in this way during the further movement of thebed until the lingers L and M have swung the upper tuck backwardly toits full extent and have become disengaged therefrom, whereupon they aremoved outwardly, so as to remove them completely from engagement withthe bag-blank. 'While' of course any mechanism could be employed forthis purpose, we secure the result by mechanism herein shown. In thisAmeehanism the rocking block 59 is pivotally connected, as by a bolt 64,to the rear end of an arm R, which extends forwardly from the rockingblock and is made in the form of a circular arc. Its forward end ispivoted, as by a bolt 65, to a rigid,4 projection or arm 66', extending'from and forminga part of the cylinder H. The pivotal connection of theroeking block with the arm permits, it will be seen, the proper tiltingor rocking of the block 59 to secure the revolution and depression ofthe stationary finger N, while the pivotal connection of the arm R withthe rotary cylinder permits the arm to be swung, so as to secure anin-and-out movement toward and away from the folding-.bed of the end ofthe arm carrying the rocking block The arm R swings extend backwardlyand downwardly.

directly toward and away from the cylinder. Its pivotal axis is a radiusof the cylinder. The swinging movement of the arm R is secured by aclosed cam S, consistingof two cam-plates 66 and 67, arranged side byside, with which plates a roller 67 is adapted to engage. Thesecam-plates 66 and 67 are bent inwardly at their upper portions, andthence downwardly to the left of such portions, so as to give the arm Rthe proper swinging movement. Since the fingers thus move in and out bya swinging motion of the arm R, the cams lJ and Q referred to arelaterally bent, so as to insure the coc'perating elements traveling uponthem. At a time lwhen the upper tuck of the blank is swung back to anextent to cause the sides of the diamond fold to stand in substantiallya vertical position the aedge of these sides are struck by a stationaryedge-turner T, by which they are bent slightly inward. This insurestheir becoming' folded without tearing as the backward movement of themovable lingerscontinues. Thisstationaryedge-turner T is convenientlymade in a form somewhat similar to a plowshare, with its front endinnermost and its sides sloping outwardly as they Thus as the edge ofthe bag-blank strikes against the outermost portion of this edge-turnerand then advances along the inwardly-inclinedportions thereof it is bentor pushed slightly in an inwardly and downwardly direction. Thisedge-turner T is conveniently mounted upon the body-frameA of themachine.

The means by which the side grippers K K are swung in and out relativelyto the foldingbed was omitted from the description of these grippers andwill be referred to now. The gri ppers are moved inwardly by the ends ofthe rocking blocks 59 59. As these blocks approach the rotary cylinderwhen the latter comes near the receiving position the ends of the blocksstrike against and move the grippers K K inwardly toward and against thecylinder. The grippers are held in an inward and-downward position bypins 3S 38, carried by the rocking blocks 59 59 and subjected to springstending to push them outwardly from the ends of the blocks toward therotary cylinder. For this purpose the grippers .K K are provided withapertures i 1, Fig. 3, so that when these apertures register with thepins 3838 the latter are projected forwardly, so as to enter theapertures, and thereby engage and lock the grippers in a downwardposition. The grippers are swung outwardly away from the rotary cylinderby springs 39 39', carried by the grippers and interposed between thesame and the sides of the rotary cylinderl Isl. These springs areallowed of course to act after the grippers have been released by thewithdrawal of the rocking blocks 59 59. The mechanism thus describedperforms the operation of swinging the upper IOO tuck of the bag-blankback about the primary crease, so as to form the diamond fold. In thiscondition the bag-blank appears as shown in Fig. 17. As soon as thediamond fold is completed the front gripper J is swung upwardly andforwardly by its rocker-arm 25 striking the elevated portion 32 of thecam 31, Fig. 3. Then it is thus thrown upwardly, it tears its waythrough the front ends of the portions of the blank forming the sides ofthe diamond fold, and thus frees itself from the blank. After this hasbeen done the fingers 'are moved outwardly and free themselves from theblank. Before the iingers have entirely left the blank, however, theprow portion of the diamond fold passes under a paste-roll U, whichserves to apply paste to the inner edges of the side flaps of the foldand also to iron the fold down or complete the creases therein. Thispaste-roll U is of the usual construction and is mounted in any suitableway upon the frame A. It cooperates with a supply paste-roll V, which inturn derives its supply from the-roll W, which dips into a reservoir w.These devices are of the usual construction. As the prow portion of thediamond fold emerges it is engaged by a tucking mechanism, by which thefirst transverse fold is made, as shown in Fig. 18, and after this it isengaged by a second tucking mechanism, by which the second transversefold or, as it is called, the blind fold is made. Thile these tuckingmechanisms could be of any suitableconstruction, they are, as a matterof further and specific improvement, constructed as herein shown.

The first tucking mechanism comprises a tucking-roll and a long arm 71,carrying a tucking-blade 72. The tucking-roll 70 is arranged close tothe cylinder H, but in such position that the prow portion of the flapas it emerges from between the paste-roll U and Vthe cylinder will passoutside of the roll 7()- that is, it will not pass between that roll andthe cylinder. Then it is passing in this way, Vthe arm 71 is swung sothat the blade 7 2 strikes the blank and pushes it at the proper pointto form the first transverse crease between the roll 70 and thecylinder. Thus the prow portion of the diamond fold is bent or foldedbackwardly against the body of the diamond and the first transversecrease is formed. The tucking-roll 7 O is conveniently mounted insuitable bearings in the frame A. The arm 71 is properly swung to formthis first transverse crease by a link 73, and this link 73 is in turnactuated by a rocker-arm 711 on a rock-shaft 75. This shaft 75 alsocarries a second rocker-arm 76, and this arm is actuated by a cam-arm 77on a rotary shaft 78. The shaft 78, it will be understood, is properlygeared with the cylinder H, so that the camarm 78 strikes the rocker-arm7 6 so as to swing the arm 71 at the proper time.

The second tucking mechanism, that is for forming the blind fold,comprises tuckingrolls 8O and 81, which are arranged in front of thetucking-roll 70. These rolls 8() 'and 81 are in such position that asthe bag-blank comes from the tucking-roll 70 and passes in a directionsubstantially tangent with the cylinder H, as it naturally tends to do,it will pass outside of or to the left of these rolls 8() and 81, asshown in Fig. 21. The roll 8O is driven by the cylinder H through themedium of a gear 82 and the roll 81 is geared to the roll 80. Atucking-blade 83 is carried by a swinging arm 84, and the latter ispivotally connected with a link 85. The latter is in turn connected witha rocker-'arm 86 on the shaft 75, and the latter is provided with asecond rockerarm 87. The arm 87 is actuated byarotary cam 88, mounted onthe shaft 78. By such arrangement when the bag-blank passes in the rearof the tucking-rolls 8O and 81 the tucking-blade 83 is actuated so as totuck the blank at the proper point for the blind or second fold inbetween the two rolls and 81, whereupon the latter effect the folding ofthe blind or second fold. The bag as so folded is shown in Fig. 19, itbeing understood that in this ligure the bag is shown with the bottomfolded in, as is its condition after this last fold is formed. TheblankI as thus folded emerges from'the machine as a completedSatchel-bottom bag.

As a matter of further and specific structural improvement the variouscams, as 29, P, Q, and S, are mounted upon the shaft 21 of the cylinderH, so as to be free to move independently of the shaft. Arrangement ismade for swinging the cams, bodily a small extent about the shaft byproviding a collar 90 upon the shaft and providing this collar with rodsor arms 91 91, which extend to and engage the cam P. The collar 90 isprovided with a lever 92, by which it can be moved. By rotating thiscollar 90 the cams are adjusted about the shaft 21, and the variousmovements are made to occur sooner or later, as desired. The arms orrods 91 91 are fitted loosely in the cam P, so as to permit the cam toslide lengthwise on the shaft relatively to said arms. Thus the variouscams can be adjusted along the shaft as well as about the same. Locknuts93 93 are provided to hold the cams in such lateral adjustment.

Brieiiy reconsidered, the operation of the machine is as follows: Thetucked tubing is fed along the former B and thence along' the tongue C,on which latter it is properly cut into proper lengths for thebag-blanks. Each length is fed out to the end of the tongue C,overhanging the rotary cylinder H. As cach bagblank approaches the topof the cylinder one of the grippers J also approaches the same in anopen condition, the gripper being slightly in advance of the end of thebag-blank. The

`forward movement of the bag-blank pushes the end thereof under thegripper J while the same is still elevated, after. which the gripper isswung down, so as to grip the end of the blank upon the folding-bed. Theparts of the gripper in this initial gripping' position are shown inFig. 11. vances the bag-blank is drawn forwardly with it, and thecreasing-blade 37 swings down and approaches the periphery of the rotarycylinder so that it meets the elastic surface 7L of the bed and bymeeting' such surface forms the primary crease. The side grippers K haveapproached thel point where the creasing-blade meets the folding-bed inan open condition, with the result that when they are swung' in towardthe folding-bed they come over or above the edges of the bag-blank. Thecreasing-blade in swinging' down to meet the folding-bed strikes both ofthese g'rippers and pushes them down against the folding` bed, whencethey grip and clamp the blank upon the same. These side grippers arelocked in an inward and downward position by the pins 38', Fig. 23. Thepoint of engagement of the side grippers K is immediately in the rear ofthe primary crease-line, and their cutaway tops permit thecreasing-blade to crease the blank in the proper place. As thefolding-bed advances the side pinching-lingers N A'move in and grip thelower ply of the blank to the folding-bed, and the pinching-fingers Land M also move in and engage the upper ply of the blank, Fig. 13. Thecontinued forward movement of the bed causes the fin gers M and L toswing' upwardly and backwardly, thereby folding' the upper ply about theside grippers K K, while at the same time the lower ply is held to thebed. "When the pinching-fingers L and M are in such position that theside edges of the bag-blank are in a standing position, Fig. 14, theseedges strike against the stationary edge-turners T T, which bend in orturn in the standing' edg'es of the blank and cause them to both moveinwardly, so that the continued backward motion of the pinching-iingersL M brings these standing sides downwardly and into a flat condition, soas to complete the diamond fold. The bagblank folded in this way isshown in Figs. 15, 1G, and 17, although in Fig. 17 the paste is alsoshown appliedto the edge of the diamond fold. This is done by the usualpasting-rolls, after which the prow portion of the diamond fold isturned back and rolled and pasted, as shown in Fig. 18, and then thediamond is again folded back to form the blind fold, as shown in Fig.19, by which act the remaining portion of the diamond fold is broughtback so that it is pasted to complete the bag-bottom. The finished bagis then discharged from the machine. i

lt will be understood that changes vand variations from the mechanismherein shown and described can be made without departing from the spiritof our invention as delined by claims.

As the rotary bed ad 1. The combination with the fold ing-bed and meansfor gripping the blank thereupon, of a blank-guide located over andclose to the .folding-bed and arranged to hold the bag against the beduntil it is engaged by the gripping device.

2. The combi nation with the folding-bed and with means thereon forgripping' the lower ply of the front end of the bag-blank, of a tonguehaving its end positioned over and close to the folding-bed, the saidtongue being adapted to guide the bag-blank to the gripping device ofthe folding-bed and having' an aperture through which the gripperpasses.

3. The combination with a rotary blank-carrier providing a folding-bed,of a gripping device arranged thereupon and rotated thereby, and atongue adapted for arrangn'ient within the bag-blank and having its endlocated over the folding-bed andthe end of the tongue being bifureatedat the point where the gripper engages the blank, the gripper beingarranged to pass through the bifurcation in the tongue, substantially asdescribed.

11. The combination with the rotary cylinder providing a folding-bed, ofa former supported by the machine-frame and adapted as a guide for thebag-blank, a tongue secured to the end of the former and having' itsforward end bifurcated and arranged in position over the rotarycylinder, and a griliiping device on the cylinder adapted to grip theblank as the same is advanced over the end of the tongue, the gripperbeing arranged to pass through the bifurcation in the tongue,substantially as described.

5. The combination of a slotted guide for the tucked tube, and a cuttingdevice having' cutting portions located on opposite sides ofthetube-guide, and also having a cutting portion adapted to pass throughthe slotted part thereof, substantially as described.

6. The combination with a former for the bag material, of a tonguesecured to the end of the former and havinga slotted portion between itsends, a rotary cylinder providing1 a folding-bed located at the otherend of the tongue, and cutting mechanism comprisingY a cutting-bladeadapted to cut the material on opposite sides of the tongue, andprovided with teeth adapted to pass through the slots in the tonguesubstantially as described.

7. In a bag-machii'ie, the combination with the folding-bed, of ablank-engaging device thereon, and a tongue for guiding the blank to thefolding-bed, said tongue having' a recessed or bifurcated end, and thesaid device being' arranged to passtlu'ough said recess or bifurcation,substantially as described.

8. The colnbiriatioi'i with a tongue for the Rrr IOO

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bag material, said tongue being apertured between its ends, of a singlecutting' device'having a cutting section adapted to pass through theapertured portion of the tongue and made as wide as the material,whereby the bagblank material is cut throughout substantially the entirewidth thereof, substantially as described.

9. The combination with the folding-bed, of a front gripper havingrearwardly-diverging beveled side edges, side grippers, and means forcausing the side grippers to g'rip the sides of the bag-blank.

10. rlhe combination with the folding-bed, of a front gripper having'rearwardly-diverging beveled side edges, tuck-grippers, and means forcausing' said tuck-g'rippers to grip the lower ply of the bag-blank. v

11. The combination with the folding-bed, of a front gripper having'rearwardly-diverging inclined or beveled side edges, and devices forengaging' the upper ply of the bagblank and folding the same backwardly.

12. The combination with the tongue for the bag material, the saidtongue having a cutaway portion between its ends, of cutting mechanismfor cutting' the bag material as the same passes along the tongue, saidcutting mechanism comprising a cutting-blade having teeth for cutting'the material on opposite sides of the tongue, and also having teethadapted to pass into the cut-away portion of the tongue.

13. The combination with the tongue for the bag material, the saidtongue having acutaway portion between its ends, of cutting mechanismfor cutting the bag material as the same passes along the tongue, saidcutting mechanism comprising a cutting-blade having teeth for cuttingthematerial on opposite sides of the tongue, and also having' teethadapted to pass into the cut-away portion of the tongue, a blade adaptedto cooperate with said cutting'- blade, and means for rotating saidblades so as to cause the cooperating blade to immediately follow thecutting-blade.

14. The combination with the former, of a tongue extending forwardlytherefrom, the said tongue being composed of a metallic strip providedwith slots between its ends, a rotary cylinder providing a folding-bedarranged below the forward end of the tongue, a gripping device carriedby the cylinder, cutting mechanism for cutting' the bag material as thesame passes along the tongue, the said mechanism comprising a rollcarrying a cuttingblade having teeth adapted to cut the material onopposite sides of the tongue, and also having teeth adapted to extendthrough the slots of the tongue, a rotary blade adapted to cooperatewith the cutting-blade, and means for rotating' said roll andcooperating blade so as to cause the cooperating blade to immediatelyfollow the cutting-blade, substantially as described.

15. A front gripper having forwardly-converging' sides, substantially asdescribed.

16. The combination with the folding-bed, of side grippers having' theirforward edges inclined rearwardly, acreasing-blade extending across thefull width of the blank between the side grippers and means foroperating the creasing-blade.

17. The combination with the folding-bed, of side grippers thereforhaving cut-away portions, a creasing-blade adapted to fit into thecut-away portions of the side grippers and eX- tending across the fullwidth of the bag-blank between the side grippers, and means foroperating said grippers and creasing-blade, substantially as described18. The combination with the folding-bed, of side grippers therefor,acreasing-blade extending' between the grippers, and provided with anextension adapted to strike the grippers and depress the same and meansfor operating the creasing-blade, substantially as described.

19. The combination with the folding-bed, of vertically-ad j ustableside grippers, longitudinally-arranged spindles carrying said grippers,said spindles being pivotally connected with the folding-bed, spring'means tending to swing the spindles so as to raise the grippers, andmeans for depressing the grippers, substantially as described.

20. The combination with the folding-bed, 0f vertically-adjustable sidegrippers therefor, spindles carrying' said grippers, the grippers beingpivotally mounted upon said spindles and the spindles being pivotallyconnected to the folding-bed, springs tending to swing said spindles soas to lift the grippers, a creasingblade extending between the grippersand having an extension adapted to strike against and depress thegrippers, means for operating the creasing-blade and means for lockingthe grippers in their depressed position.

21. The combination with the folding-bed,

`of side grippers therefor, means for carrying said grippers andpermitting the vertical adjustment of the same, spring means tending toelevate the grippers, means for depressing the same, and pins forlocking the grippers in their lowermost positions.

22. The combination with the folding-bed, and means for holding thelower ply of the bag-blank thereon, of a pair of pinching-iingers, meansfor supporting the same, spring means tending to hold the fingerstogether, means for rocking the fingers in unison, and a catch adaptedto hold the rear or-under finger temporarily against rocking whereby thefingers will be opened to permit the entry of the bag-blank.

23. The combination with the folding-bed, of means for holding thelowerply of the bagblank thereon, pinching-fingers, a rock-shaft on which thefingers are mounted the advance or upper finger being fixed to the shaftand TOO IIO

the lower or rear being loose thereon, a spring tending to hold thelingers together, a catch adapted to engage a projection on the looselinger, means for rocking the shaft carrying thelingers, and means fortripping the catch after the shaft has begun to rock, substantially asdescribed. v

24:. The combination with the folding-bed, of means for holding thelower ply of the bagblank thereon, a pair of pinching-lingers, arock-shaft carrying the same, one of the lingers being lixed on theshaft and the other loose thereon, a spring tending to hold the lingerstogether, means for rocking the shaft so as to swing the lingers, saidmeans comprising a rock-shaft geared to the pinching-lingershaft,aroller carried by the rock-shaft, and a cam adapted to swing therock-shaft so as to cause the rocking of the pinching-finger shaft, acatch adapted to engage the loose linger when the lingers are in theirforward position, a roll adapted to trip said catch shortly after thelinger-shaft has begun to rock, an abutment for stopping the looselinger shortly before the shaft carrying the lingers reaches the end ofits movement, whereby the lingers are separated or opened, and a springtending to rock the linger-shaft in a reverse direction, substantiallyas described.

25. The combination with the folding-bed. and means for holding thelower ply of the bagblank thereon, of pinching-lingers, a rockshaftcarrying the same, the upper or forward finger being liXed upon theshaft and the lower or rear one loose thereon means for rocking saidshaft, a spring tending to hold said lingers together, a catch arrangedto engage the loose linger when the fingers are in their forwardposition, means for tripping the said catch shortly after the shaft hasbegun to rock, and` an abutment for stopping the rocking of the looselinger shortly before the rocking of the shaft ceases.

26. The combination with the folding-bed and means for holding the lowerply of the bagblank thereon, of pinching-lingers, a shaft carrying thesame, the upper or forward lingerl bag-blank, a curved arm extendingforwardly from the tuck-turning devices and carrying such devices at itsrear end and pivotally connected to the foldmg-bed at its forward end,

the axis of pivotal connection being a radius of the cylinder, and meansfor swinging said arm so as to move the tuck-turning devices toward andaway from the cylinder as required, substantially as described.

28. The combination with a rotary cylinder providing a folding-bed, andwith a roll U cooperating with the cylinder, of a roll 7l) arrangedclose to the cylinder and having its outer periphery substantially inline with a tangent between the cylinder and the roll U so that thebag-blank as it leaves the cylinder will pass outside of the roll 70, atuclring-blade 72 arranged to strike the bag-blank between rolls U and70 and thereby force it between the roll 70 and the cylinder in adoubled-back condition, and means for actuating the blade 72, as setforth.

Q9. The combination with a rotary cylinder providing a folding-bed, of aswinging arm pivotally connected to said cylinder and having its freeend extending rearwardly from its 35 point of connection, a rockingblock pivotally connected with the rear end of said swinging arm,devices for engaging the upper ply of the bag-blank and turning the sameback,

means for engaging the lower ply and holding the same upon thefolding-bed, said devices being mounted upon the rocking block, meansfor swinging the arm so as to move the rocking block in and out towardand away from the bag-blank as required, means for tilting the rockingblock during its forward movement so as to move the lower tuck-grippingdevice toward and away from the folding-bed as required, and means foroperating the upper tuck-turning mechanism as required during IOO theforward motion of the rocking block, substantially as described.

30. The combination with a rotary cylinder providing a folding-bed, ofan arm pivotally connected with the cylinder and exten ded rear- I O5eers, a rock-shaft carrying said pincers and IIO mounted upon saidrocking block, the outer linger being fast on the shaft and the innerone being loose thereon, spring means for holding the lingers together,a catch for engaging the loose linger when the lingers are in theirforemost position, means for actuating said catch shortly after saidshaft begins to turn, an abutment for stopping the loose linger shortlybefore the shaft completes its rocking movement, a rocker-arm geared to12o said shaft, a cam for swinging said rockerarm as required to rocksaid shaft, ineansfor swinging theA arm pivotally connected with thecylinder in and out toward and away from the cylinder as required duringthe advancement of the folding-bed, and a cam for tilting the rockingblock so as to move the lower tuck-gripper toward and away from the.folding-bed as required during such advancement of the bed,substantially as described.

31. The combination with a movable folding-bed and means for holding thelower ply of the bag-blank thereon, of means for swinging the upper plyof the bag-blank backwardly SO as to form the diamond fold, andstationary edge-turners arranged on opposite sides of the folding-bedand comprising inclined abutments located so as to be struck by theedges of the blank when .the same are in a standing position.

32. The combination with a movable folding-bed, of meansfor forming thediamond fold thereon, and stationary edge-turners arranged on oppositesides of the folding-bed, said edge-turners comprising blades slopingoutwardly in a sidewise and downward direction from their rearward endsand located soy as to act upon theedges of the bag-blank when the sameare in a standing position.

. 33. In a bag-machine, stationary side edgeturners consisting ofstationary abutments inclined inwardly into the path of travel of thebag-blank, and located so as to act while the edges of the bag-blank arein a standing position, substantially as described.

34. In abag-machine, stationary edge-turners comprising blades slopingoutwardly in a forward and downward direction from their rearward endsand situated above the foldingbed to such an extent as to'strike theedges of the bag-blank when the same are in a standing position.

35. The combination with the folding-bed, of edge-turning devices, afront gripper having rearwardly-diverging side edges and means forturning the upper ply of the bag-blank backwardly.

36. The combination with arotary cylinder providing a folding-bed, andthe roll U of a tucking-roll 70, arranged with its outer peripherysubstantially in line with a tangent passing between the cylinder androll U, an arm 71 carrying a ing-blade 7 2, a link 7 3 connected withthe arm 71, a shaft 7 5 carrying rocker-arms 74 and 76, andarotary shaftcarrying a rotating' cam 77 adapted to actuate the rocker-arm 7 6,substantially as described.

37. The combination witharotary cylinder providing a folding-bed, of apair of tuckingrolls 8O and 8l arranged adjacent to the cylinder,gearing between said rolls and the cylinder for rotating both of therolls as desired, a tucking-blade 83 arranged to direct the bagblankbetween the rolls 8O and 8l and mechanismfor actuating the blade 83,substantially as described.

38. The combination with a rotary cylinder, of a shaft for supportingthe same, a set of cams secured together so as to move in unison andmounted upon the said shaft, devices Cooperating with said cylinder andactuated by the cams, and means for moving the cams bodily along theshaft, substantially as described.

39. The combination with the rotary cylin-` der providing thefolding-bed, of a shaft therefor, a set of cams secured together andmounted upon said shaft, devices cooperating with the cylinder andactuated by the cams, and means for swinging or adjusting the cams aboutthe shaft,'substantially as described.

40. The combination with the rotary cylinder, of the shaft, devicescooperating with the cylinder and actuated by the cams therefor,

cams secured together mounted upon the shaft,

a collar also mounted upon the shaft and provided with arms or rodsengaging the cams, and a lever for rotating said collar.

4l. The combination with a front gripping device having rearwardlydiverging side edges, of side grippers adapted to'clasp both plies ofthe bag-blank and hold the same against the folding-bed, lowertuck-gripping devices, and means for engaging the upper ply of thebag-blank and folding the same backwardly.

'42. In a bag-machine, a side gripping device having its forward edgeinclined rearwardly.

43. In abag-machine, a side gripping device cut away in the rear of itspoint of engagement. Y

44. In a bag-machine, a side gripping device adapted to engage thebag-blank at the edge of the folding-bed and cut away in the rear of itspoint of engagement.

45. The combination with the folding-bed of a side gripping device cutaway inside of its point of engagement of the blank, a creasing deviceextending to the cut-away edge of the gripping device, and means foroperating the creasing-blade.

46. In a bag-machine, a front gripper provided with an inwardly andforwardly inclined side edge, substantially as described.

47. In a bag-machine, a front gripper provided with inwardly andforwardly inclined side edges, substantially as described.

48. The combination with a guide for the tucked tube,`having a slottedportion, of cutting-blades located opposite the slotted portion of theguide, and extended beyond the sides of the guide, said cuttingbladesbeing located side by side, and means for actuating said blades so as tocause their simultaneous cutting action.

49. The combination with a tongue having a slotted portion, of a cuttingdevice having a portion arranged to pass through the slotted portion ofthe tongue, and also having portions located on opposite sides of thetongue.

50. The combination of a tongue having a slotted portion, ofcutting-blades located opposite the slotted portion of the tongue, and

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extended beyond the sides of the guide, and a single element carryingsaid cuttng-blades, substantially as described.

51. The combination with a tongue having a slotted portion, and acutting' device consisting of a outting-blade 15 mounted in a roll Ehaving' a cnt-away portion 16 in front of the blade 15,the said blade 15having,` teeth located at the sides of the tongue and also teeth locatedopposite the slotted portion of the tongue, and a rotary blade Farranged to cooperate with the cutting-blade 15, and located on theopposite side of the tongue.

In witness whereof we have hereunto subscribed our. names this 10th dayof October, I 5 A. D. 1901.

I-lEltBERI.` E. WESTERVELT. WALTER Gr. HOLMES.

Witnesses as to the signature of Herbert E VV'estervelt:

HARRY Gr. SoHoeK, EDA E. RosENeRANs,

W'itnesses as to the signature of `W alter G.

Holmes: i

ANDREW ANDERSON,a ANDREW J. XVARD.

